# SSD disk Western Digital 4 TB M.2 PCI Express 4.0 NVMe Black SN850X

**URL:** https://aio.lv/en/product--sandisk-wdbb9g0040bnc-wrsn--6535455
**Data updated:** 2026-01-13 21:30 (EET)
**Category:** Solid State Drives (SSD)
**Manufacturer:** SANDISK
**Manufacturer code:** WDBB9G0040BNC-WRSN
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 539.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 446.27 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sandisk-wdbb9g0040bnc-wrsn--6535455

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The Western Digital Black SN850X is a high-performance 4 TB M.2 NVMe SSD designed for PC use. It offers lightning-fast read speeds of up to 7300 MB/s and write speeds of 6600 MB/s, making it ideal for gaming and demanding applications. With its PCI Express 4.0 interface, this SSD ensures optimal performance and efficiency, allowing for quick data access and transfer. Upgrade your system with the reliability and speed of Western Digital.

## Long description

The Western Digital 4 TB M.2 PCI Express 4.0 NVMe Black SN850X is a high-capacity solid-state drive designed for desktop and laptop systems that support M.2 NVMe devices and PCIe 4.0 links. With up to 4 TB of storage and peak sequential read speeds of up to 7300 MB/s and write speeds up to 6600 MB/s, this SSD delivers fast system boot, rapid application load times and accelerated file transfers for large media and datasets. The compact M.2 form factor fits modern motherboards and small-form-factor builds, offering an upgrade path for users who need both high capacity and high throughput.
Advantages
The SN850X combines PCI Express 4.0 bandwidth with NVMe protocol efficiency to provide sustained high performance for sequential and random workloads. Its 4 TB capacity reduces the need for multi-drive configurations while enabling storage of large game libraries, multimedia projects and virtualization images on a single drive. Low access latency and high read/write throughput help shorten load times and improve responsiveness in demanding applications.
Suitable for
 Gaming PCs and consoles that accept M.2 NVMe SSDs
 Content creation: video editing, 3D rendering, large photo libraries
 Software development and virtualization with large images and datasets
 High-performance system drives for OS and frequently used applications
Key specifications
 Storage capacity: 4000 GB
 Form factor: M.2
 Interface: PCI Express 4.0, NVMe protocol
 Maximum sequential read speed: up to 7300 MB/s
 Maximum sequential write speed: up to 6600 MB/s
How to use
Install the SSD into an available M.2 slot on a motherboard that supports NVMe devices and PCIe 4.0 for full performance. Secure the drive with the mounting screw and configure the BIOS/UEFI to recognize the M.2 device as a bootable drive if installing an operating system. Use the operating system’s disk management tools to initialize, partition and format the drive as required. For data migration, use compatible cloning software to transfer an existing system image to the SN850X.
Usage recommendations
To obtain maximum sustained performance, pair the drive with a motherboard and CPU that support PCIe 4.0 lanes for the M.2 slot. Ensure adequate airflow or passive cooling in the drive area to help maintain throughput under sustained workloads. Regularly update system firmware and drive firmware when updates are provided by the manufacturer. For critical data, implement a backup strategy rather than relying on a single drive.

## Specifications

### Features

| Feature | Value |
|---|---|
| SSD capacity | 4000 GB |
| SSD form factor | M.2 |
| Read speed | 7300 MB/s |
| Write speed | 6600 MB/s |
| Component for | PC |
| NVMe | Yes |
| Interface | PCI Express 4.0 |
| Windows operating systems supported | Windows 10, Windows 11, Windows 8.1 |
| M.2 SSD size | 2280 (22 x 80 mm) |

## FAQ

### How much does the SSD disk Western Digital 4 TB Black SN850X cost, and is it available for purchase?

The price is 539.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 38 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can SSD disk Western Digital 4 TB Black SN850X be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All SANDISK products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized SANDISK service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: ssd capacity, ssd form factor, read speed, write speed, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/6535455/62359533_large.webp